ABAP RESTful Application Programming Model

The ABAP RESTful application programming model (RAP) is the cornerstone of modern development for SAP—get on the cutting edge with this guide! Develop applications from the ground up, from data modeling with CDS to interface generation with SAP Fiori elements. Walk through concrete use cases, including managed and unmanaged scenarios, and then adapt your applications to the SAP BTP, ABAP environment. You’re on your way to working with RAP!

• Develop ABAP applications for SAP S/4HANA and SAP BTP
• Use key tools and technologies, including core data services and SAP Fiori
• Get step-by-step guidance for modeling data, implementing behaviors, developing user interfaces, and more

The Programming Model
Master the building blocks of the model. Understand REST architecture, work with CDS view entities, implement behaviors, and more. Learn about new features such as the business object interface and extensibility.

End-to-End Application Development
Develop applications for SAP S/4HANA and SAP BTP, step by step. Start by building your data model, and then create behavior definitions, implement functions, define business services, and generate your user interface.

Practical Scenarios
Apply RAP to suit your development needs. Create an application in a custom managed scenario, and then see how to integrate standard SAP functions. If you want to reuse source code, learn to adapt legacy applications for RAP in an unmanaged scenario.

• Application development
• Managed and unmanaged scenarios
• Core data services (CDS)
• Behavior definition
• Entity manipulation language (EML)
• Behavior implementation
• Business services
• Business object extensibility
• SAP Fiori elements
• SAP BTP, ABAP environment

Lutz Baumbusch has worked as an SAP developer since 2000 and has been responsible for international SAP projects in various roles and areas. At All for One Group SE, he prepares current developer topics for internal and external training in the SAP S/4HANA development team. He studied at the Karlsruhe Institute of Technology.

Matthias Jäger is a freelance SAP developer of software products based on the ABAP platform. In addition to his work as a developer, he works as an architect and coach, designs cross-product, technical aspects, and leads training courses. Previously, he worked as a part of the solution development team at All for One Group SE.

In 2004 he started his career as an SAP developer and as a developer of Java-based software products. Since then, he has worked as a developer, development manager, and trainer in different SAP implementation projects in the logistics sector. He has been a regular guest lecturer at DHBW Stuttgart, where he teaches ABAP programming and the use of system analysis methods. He studied business informatics in Heidenheim as part of a dual degree program.

Michael Lensch leads a team of SAP developers at All for One Group SE. As development manager, he is responsible for development in SAP S/4HANA implementation projects in Germany and abroad. Since 2014, he has also led a technical team that deals with development for SAP HANA and SAP S/4HANA. He studied computer science at Trier University of Applied Sciences.